Diacritic
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A diacritic is a glyph added to a letter or to a basic glyph. The term derives from the Ancient Greek διακριτικός, from διακρίνω. The word diacritic is a noun, though it is sometimes used in an attrib
Hangul, the Korean syllabary
German keyboard with umlaut letters
Blackboard used in class at Harvard shows students' efforts at placing the ü and acute accent diacritic used in Spanish orthography.
Alphabet
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An alphabet is a writing system that uses a standard set of symbols, called letters, to more or less represent particular sounds in a spoken language. Specifically, letters largely correspond to phone
The Old Hungarian script alphabet.
Geʽez script of Ethiopia and Eritrea.